I met my DH at 15, when I was 19 he was allowed to sleep on the couch.
Once we had been out separately and we both woke up in my bed (Still don't know who came to bed first or last and we are now in our 40's)
Bathroom was downstairs through the living/dining room and kitchen, both busting for the toilet, shittng ourselves in case my dad was disappointed and we were told off (mam had gone shopping)
2 bloody hours we waited up there....mam came back...I ran to her and explained how sorry we were, it won't happen again, it was an accident, we respect the rules blah, blah....
My mam bursts into laughter, tells us dad knows, they had both been waiting for the last year for us to ask permission for him to sleep in my room ☺ I never would of asked as I respected their rule and thought I was lucky he was allowed to sleep on the couch (on hearing this DH runs past me at lightening speed to go to the bathroom)
Nothing was ever said and we went on to buy a triple door wardrobe and double bed for my room, Then we moved out 4 years later 😅